Heating and ventilating system



(No Model.) 2 Sheets-Sheet 1.

C. P. NOBLE. V HEATING AND VENTILATIN-G SYSTEM.

No. 563,677. Patented July '7, 1896.

(N o Model.) 2 Sheets-Sheet 2.

U. P. NOBLE.

HEATING AND VENTILATING SYSTEM. No. 563,677. Patented July 7, 18961 UNITED STATES PATENT FFICB,

HEATlNG AND VE N'I'ILATING SYSTEM.

SPECIFICATION forming part of Letters Patent No. 563,677, dated July 7, 1896. Application filed March 13, 1895. $erial No. 541,544. (No model.)

To aZZ whom it may concern:

Be it known that 1, CHARLES P. NOBLE, a citizen of the United States of America, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Heating and Ventilating Systems, of which the following is a specification.

My invention relates to certain improve ments in heating and ventilating systems, the purpose of which is to facilitate the rapid heating of a number of rooms, and to maintain a given temperature in said rooms when once heated.

The class of heating systems to which my invention is applied is that in which a number of rooms or inclosures are heated and ventilated by means of a supply of hot air and an independent supply of cooler air, each provided with means for admitting the air therefrom to the diiferent rooms, and each of said rooms being provided with a thermostat provided with suitable connections for admitting more or less of either hot or the cool air to regulate the temperature of the room. In the use of these systems it is frequently necessary to heat all of the rooms after they have become cold and before it is desirable to 00- cupy the same, as, for instance, school-rooms, offices, or, in fact, the rooms of any building in which it is not important that the heat should be carefully regulated except at certain portions of the day or night. With these systems, as ordinarily constructed, much time and fuel are wasted, for the reason that the rooms do not heat evenly, and after one room becomes hot the system keeps up an active ventilation and constant changing of the air in the same while the other rooms are heatin It is the purpose of my invention to provide means whereby the entire heat and power of the ventilating system maybe directed solely to heating a series of rooms up to a given temperature without any waste of air or power during the time required by this operation. To such endthe invention consists in certain novel features claimed at the end of this specification and fully described below. My invention is illustrated in the drawings by means of three figures, of which- Figure l is a vertical cross-section of a portion of a building, showing parts of a heating system adapted to illustrate my improvements. Fig. 2 is a horizontal cross-section in line 2 2 of Fig. 1, and Fig. 3 is a broken vertical section in line 3 3 of Fig.

The system here shown consists of a fan A, suitably driven and located in an apartment l3, supplied with fresh air; an apartment G, into which the blast of the fan is received, said apartment containing a horizontal partition 0, upon which rests a series of heatingcoils c wholly without novelty, beyond which is a hot-air chamber 0 and beneath which is a chamber for cooler air 0 which is provided with a balanced damper c, by means of which the chamber a can be entirely out off from the blast of the fan, and a series of pipes 0 leading from the chamber 0 upward through the chamber c and thence to the apartments to be heated. Making the partition 0 hollow is merelya convenient way of making it more nearly non'conduct-ing. In the portion of these pipes within the chamber 0* are openings 0 provided with valves o and other valves c are placed in the pipes c between the openings 0 and the chamber These valves are shown as connected by means of links 0 so that the opening of one closes the other. Each room is provided with a thermostat D, of any approved description, provided with suitable connections (Z with the valves 0 a to operate the valves and regulate the temperature by admitting either hot or cool air, as may be necessary. The pipes a open into the rooms near the top through registers E, and vents F are provided near the floor for the escape of the foul air.

In the ordinary operation of heating and ventilating the rooms the damper c is wide open, as shown in dotted lines, and the air from the fan A passes either through the heating-coils c or through the chamber 0 just as may be determined by the position of the valves c 0 hen the temperature of any one room rises a little above the desired point, the thermostat in that room operates the valves in the pipe leading thereto and admits more of the cooler air and less of thehot air. On the other hand, when the room becomes too cold the action is reversed, so that the system is entirely automatic and satisfactory after all the rooms are once heated ICO to the proper temperature. In heating the the system takes up the usualand narmal rooms in the first instance, however, as soon iunction of both heating and ventilation.

as one rc m1 becomes hot, wl ioh always hap- I clair as new and desire to secure byLetpens before all of the rooms are raised to the ters Patent- 5 same temperature, the thermostat in that l. The combinatim of several apartments 43 room shut: off the hot air an 1 lets in the cool it be heated, mean for supplying a urrent air, so that while the other roc ms are heating (1 air, ducts for di viding and receiving the this room is cooling down under the influence divided portions of said current, one of the of the cooler blast through the chamber a c' ucis being provided with means for heating IO This inv )lves a loss of heat a id also takes up th e tir which flows through it, means f r vaa portion f the blast from the ventilatingryingthe relative v lumes of the divi led porfan, both of which are und si rable for the t' r of said current in accordance with the reasonthat theroomsarenotu=uallyoc zupied cl ii es of temperature in the apartments, at such a time, and a slight exzess of heat, me LBS f r uniting the livided portions cf the 5 until all of the rooms become heated, is not current and deliveiing them to said aparto objectionable. For this reason I have proments, and means f )r closing at Will the in its vided the damper c, by means of which the which are not heate l. engineer may shut out entirely the owl-air .2 The combinatio of several apar 'IPT ts chamber a from the heatin t a y to until the to be heated, means for supplying a current 2 entire building is heated up to the re uired of air, ducts for dividing and receiving, the 55 point anl until occupied. When this damper divided portions of mid current, one of the is close 1, ts shown in Fig. 1, the fan forces ducts be ng provi ie lvvith means for he it g hot air tn ugh the chamber into all the the air which flows through it, ducts leading rooms until one of them is su i i ntly varm, to the apartments iespectively, and (5%(3111'6' 2 when t a room is at once cui cit by it therceiving a part of the current in each 01' the 6c mostat 1h wing the entire 311 acity f the di cts fir t mentione 1, means for varying the heating system into the heating; )f the other re ative olumes cf the parts so received in rooms. The above operation 1 repeated on accc rdance with the te mperature in the ape] teach rocn one after the other, un ii the whole In ant to which such pa] ts are delivered, and

c buildim, s brought to required temper tture. means for closing at will the ducts which ire )5 I am hi s able to heat a build mg in a much not heate d. shorter time and with much less onsunr ption P RLES P. NOBLE. of fuel and power. When the rooms come Witnesses: l l l l i i l l t t r r r r i into use and ventilation is needed, the en- CHAS. O. S L1,

5 gineer throws the damper 0 wide open and A. I. H. EIlBIbEN. 

